final ExpressionFactory expressionFactory =
ExpressionFactory.getDefaultInstance();
final NamespacePrefixTracker prefixTracker =
NamespaceFactory.getDefaultInstance().createPrefixTracker();
prefixTracker.startPrefixMapping("meta-property",
XDIMESchemata.XDIME2_MCS_NAMESPACE);
final ExpressionContext expressionContext =
expressionFactory.createExpressionContext(null, prefixTracker);
final EnvironmentContextMock environmentContextMock =